The set of 10 units is designed for use with an instructor as an introduction to technical drafting, and is also keyed to other texts. Each unit contains several task packages specifying prerequisites, rationale for learning, objectives, learning activities to be supervised by the instructor, and learning practice. The units cover: drafting instruments, technical lettering, applied geometric construction, draftsman's alphabet of lines, orthographic projection, dimensions and notes, sections, auxiliary views, architectural drafting, and map drafting. (BP)